feat: activity feed — enriched audit events + global/project timelines (#45)

* feat(branding): white-label — public /branding, admin write, shell theming

app_settings branding.* keys (product name, logo/favicon URLs, accent
color, docs/support links). Public GET /branding so login and shell
theme pre-auth; admin writes via PUT /settings.

useBranding() applies document.title, accent CSS var and favicon;
BrandWordmark replaces hardcoded wordmarks; admin Platform settings
gain a Branding form. MCP containr_branding_get + settings_update.

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* feat(invites): team invite links — admin create/revoke, public accept

Admins mint single-use invite links (sha256-hashed token at rest,
optional email binding, configurable TTL). Public endpoints let the
accept page validate the link and register — working even while
public signup is disabled.

- migration + sqlc queries/model for user_invites
- POST /admin/invites (returns one-time token+url), GET list, DELETE revoke
- GET /auth/invites/:token public validation, POST /auth/accept-invite
- CLI containr invites list|create|revoke; MCP invites tools
- /auth/accept-invite page (expired/used/invalid states, bound-email lock)
- Admin page Team invites section: create, copy link, revoke
- OpenAPI + generated types + CLI guide

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* feat(admin): impersonate user — 15-min token, audit-logged

POST /admin/users/:id/impersonate mints a short-lived bearer token
(impersonated_by claim) for support/debugging. Admin accounts cannot
be impersonated; every mint is audit-logged with actor + target.

- CLI: containr admin impersonate <user-id> (works via CONTAINR_TOKEN)
- MCP: containr_admin_impersonate
- Admin UI: per-user Impersonate action → token modal with usage hint
- OpenAPI + generated types

Verified live: token resolves to target, admin target 403, audit row.

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* feat(git): GitHub App manifest self-provisioning + app-level webhook

Admins create the instance GitHub App in-browser instead of hand-
setting GITHUB_APP_* env vars:

- POST /admin/git/github-app/manifest builds the manifest + URL;
  the frontend auto-submits it to github.com
- /git/github-app/callback page exchanges the code via
  POST /admin/git/github-app/convert; credentials persist in
  app_settings (precedence over env)
- GET /admin/git/github-app reports configured/source
- POST /api/git/github-app/webhook — single app-level push receiver,
  HMAC-verified, dispatches via extracted dispatchPushToServices
- install-url + installation-token paths resolve settings→env
- CLI: containr admin github-app status|manifest|convert; MCP tools
- Git providers UI shows "Set up GitHub App" for admins when
  unconfigured

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* feat: activity feed — enriched audit events, global + per-project timelines

audit_logs gains severity/category/label columns derived from
resource+action at write time; legacy rows are classified on read and
backfilled at boot in batches.

- GET /activity: global feed scoped to the caller's visible projects
  (admins see all); severity/category/resource/project_id/since
  filters, page+limit
- GET /projects/:id/activity: timeline correlated to the project's
  services, deployments, databases and the project record; access
  mirrors project read rules
- Retention worker prunes rows older than AUDIT_RETENTION_DAYS
  (default 90, 0 disables), running once at boot then daily
- project.create/delete now audited so timelines aren't empty
- CLI `containr activity` with filter flags; MCP tools
  containr_activity_list + containr_project_activity
- Frontend: /activity page (severity chips, icon per category) under
  Operate nav; project workspace gains an Activity view tab
- OpenAPI + generated types + CLI docs

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

---------

Co-authored-by: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

app/backend/internal/api/activity.go

@@ -0,0 +1,300 @@
+package api
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+
+	"containr/internal/database"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+)
+
+// Activity feed — enriched audit_logs rows (severity/category/label) served
+// as a global feed and per-project timelines. Visibility mirrors the
+// deployment/operations scoping: own actions, plus events on resources
+// inside visible projects (approved / owned / member; admin sees all).
+
+const activityVisibility = `(
+	a.user_id = $1::uuid OR $2::bool
+	OR (a.resource = 'project' AND a.resource_id IN (
+		SELECT id FROM projects p WHERE p.is_approved OR p.owner_id = $1::uuid
+		OR EXISTS (SELECT 1 FROM project_members pm WHERE pm.project_id = p.id AND pm.user_id = $1::uuid)))
+	OR (a.resource = 'service' AND a.resource_id IN (
+		SELECT s.id FROM services s JOIN projects p ON p.id = s.project_id
+		WHERE p.is_approved OR p.owner_id = $1::uuid
+		OR EXISTS (SELECT 1 FROM project_members pm WHERE pm.project_id = p.id AND pm.user_id = $1::uuid)))
+	OR (a.resource = 'deployment' AND a.resource_id IN (
+		SELECT d.id FROM deployments d
+		JOIN services s ON s.id = d.service_id
+		JOIN projects p ON p.id = s.project_id
+		WHERE p.is_approved OR p.owner_id = $1::uuid
+		OR EXISTS (SELECT 1 FROM project_members pm WHERE pm.project_id = p.id AND pm.user_id = $1::uuid)))
+	OR (a.resource = 'database' AND a.resource_id IN (
+		SELECT ds.id::uuid FROM database_services ds JOIN projects p ON p.id = ds.project_id
+		WHERE p.is_approved OR p.owner_id = $1::uuid
+		OR EXISTS (SELECT 1 FROM project_members pm WHERE pm.project_id = p.id AND pm.user_id = $1::uuid)))
+)`
+
+const activitySelect = `SELECT
+	a.id, COALESCE(a.user_id::text, ''), COALESCE(u.email, ''),
+	a.resource, COALESCE(a.resource_id::text, ''), a.action,
+	COALESCE(a.details::text, '{}'),
+	COALESCE(a.ip_address::text, ''), COALESCE(a.user_agent, ''),
+	COALESCE(a.severity, 'info'), COALESCE(a.category, ''), COALESCE(a.label, ''),
+	a.created_at
+	FROM audit_logs a
+	LEFT JOIN users u ON u.id = a.user_id`
+
+func scanActivityRows(rows *sql.Rows) []AuditLog {
+	var logs []AuditLog
+	for rows.Next() {
+		var l AuditLog
+		if err := rows.Scan(&l.ID, &l.UserID, &l.UserEmail, &l.Resource, &l.ResourceID,
+			&l.Action, &l.Details, &l.IPAddress, &l.UserAgent,
+			&l.Severity, &l.Category, &l.Label, &l.CreatedAt); err != nil {
+			continue
+		}
+		// Rows written before enrichment carry empty metadata — classify on read.
+		if l.Label == "" || l.Category == "" {
+			sev, cat, label := classifyAuditEvent(l.Resource, l.Action)
+			if l.Severity == "" || l.Severity == "info" {
+				l.Severity = sev
+			}
+			if l.Category == "" {
+				l.Category = cat
+			}
+			if l.Label == "" {
+				l.Label = label
+			}
+		}
+		logs = append(logs, l)
+	}
+	return logs
+}
+
+// GET /activity — global feed. Filters: severity, category, resource,
+// project_id, since, page, limit.
+func handleGetActivity(c *gin.Context) {
+	userID, ok := requireAuthenticatedUserID(c)
+	if !ok {
+		return
+	}
+	db := c.MustGet("db").(*database.DB)
+	isAdmin := contextIsAdmin(c)
+
+	page := parsePositiveInt(c.DefaultQuery("page", "1"), 1)
+	limit := parsePositiveInt(c.DefaultQuery("limit", "50"), 50)
+	if limit > 200 {
+		limit = 200
+	}
+	offset := (page - 1) * limit
+
+	conditions := []string{activityVisibility}
+	args := []interface{}{userID, isAdmin}
+	nextArg := 3
+
+	if v := strings.TrimSpace(c.Query("severity")); v != "" {
+		conditions = append(conditions, fmt.Sprintf("a.severity = $%d", nextArg))
+		args = append(args, v)
+		nextArg++
+	}
+	if v := strings.TrimSpace(c.Query("category")); v != "" {
+		conditions = append(conditions, fmt.Sprintf("a.category = $%d", nextArg))
+		args = append(args, v)
+		nextArg++
+	}
+	if v := strings.TrimSpace(c.Query("resource")); v != "" {
+		conditions = append(conditions, fmt.Sprintf("a.resource = $%d", nextArg))
+		args = append(args, v)
+		nextArg++
+	}
+	if v := strings.TrimSpace(c.Query("project_id")); v != "" {
+		if _, err := uuid.Parse(v); err != nil {
+			respondError(c, http.StatusBadRequest, "VALIDATION", "invalid project_id")
+			return
+		}
+		conditions = append(conditions, fmt.Sprintf(`(
+			(a.resource = 'project' AND a.resource_id = $%d::uuid)
+			OR (a.resource = 'service' AND a.resource_id IN (SELECT id FROM services WHERE project_id = $%d::uuid))
+			OR (a.resource = 'deployment' AND a.resource_id IN (
+				SELECT d.id FROM deployments d JOIN services s ON s.id = d.service_id WHERE s.project_id = $%d::uuid))
+			OR (a.resource = 'database' AND a.resource_id IN (SELECT id::uuid FROM database_services WHERE project_id = $%d::uuid))
+		)`, nextArg, nextArg, nextArg, nextArg))
+		args = append(args, v)
+		nextArg++
+	}
+	if v := strings.TrimSpace(c.Query("since")); v != "" {
+		sinceTime, err := time.Parse(time.RFC3339, v)
+		if err != nil {
+			respondError(c, http.StatusBadRequest, "VALIDATION", "invalid since timestamp, expected RFC3339")
+			return
+		}
+		conditions = append(conditions, fmt.Sprintf("a.created_at >= $%d", nextArg))
+		args = append(args, sinceTime)
+		nextArg++
+	}
+
+	query := fmt.Sprintf(`%s WHERE %s ORDER BY a.created_at DESC LIMIT $%d OFFSET $%d`,
+		activitySelect, strings.Join(conditions, " AND "), nextArg, nextArg+1)
+	args = append(args, limit, offset)
+
+	rows, err := db.Query(query, args...)
+	if err != nil {
+		respondError(c, http.StatusInternalServerError, "INTERNAL", "failed to fetch activity")
+		return
+	}
+	defer rows.Close()
+
+	logs := scanActivityRows(rows)
+	if logs == nil {
+		logs = []AuditLog{}
+	}
+	c.JSON(http.StatusOK, gin.H{
+		"activity": logs,
+		"page":     page,
+		"limit":    limit,
+		"has_more": len(logs) == limit,
+	})
+}
+
+// GET /projects/:id/activity — per-project timeline. Resource correlation
+// mirrors the global feed, pinned to this project.
+func handleGetProjectActivity(c *gin.Context) {
+	userID, ok := requireAuthenticatedUserID(c)
+	if !ok {
+		return
+	}
+	db := c.MustGet("db").(*database.DB)
+	projectID := strings.TrimSpace(c.Param("id"))
+	if _, err := uuid.Parse(projectID); err != nil {
+		respondError(c, http.StatusBadRequest, "INVALID_ID", "invalid project id")
+		return
+	}
+
+	// Access check: approved / owner / member / admin.
+	var visible bool
+	if err := db.QueryRow(
+		`SELECT p.is_approved OR p.owner_id = $2::uuid OR $3::bool
+			OR EXISTS (SELECT 1 FROM project_members pm WHERE pm.project_id = p.id AND pm.user_id = $2::uuid)
+		 FROM projects p WHERE p.id = $1`,
+		projectID, userID, contextIsAdmin(c),
+	).Scan(&visible); err != nil || !visible {
+		respondError(c, http.StatusNotFound, "NOT_FOUND", "project not found")
+		return
+	}
+
+	limit := parsePositiveInt(c.DefaultQuery("limit", "50"), 50)
+	if limit > 200 {
+		limit = 200
+	}
+	page := parsePositiveInt(c.DefaultQuery("page", "1"), 1)
+
+	rows, err := db.Query(fmt.Sprintf(`%s WHERE (
+			(a.resource = 'project' AND a.resource_id = $1::uuid)
+			OR (a.resource = 'service' AND a.resource_id IN (SELECT id FROM services WHERE project_id = $1::uuid))
+			OR (a.resource = 'deployment' AND a.resource_id IN (
+				SELECT d.id FROM deployments d JOIN services s ON s.id = d.service_id WHERE s.project_id = $1::uuid))
+			OR (a.resource = 'database' AND a.resource_id IN (SELECT id::uuid FROM database_services WHERE project_id = $1::uuid))
+		) ORDER BY a.created_at DESC LIMIT $2 OFFSET $3`,
+		activitySelect), projectID, limit, (page-1)*limit)
+	if err != nil {
+		respondError(c, http.StatusInternalServerError, "INTERNAL", "failed to fetch activity")
+		return
+	}
+	defer rows.Close()
+
+	logs := scanActivityRows(rows)
+	if logs == nil {
+		logs = []AuditLog{}
+	}
+	c.JSON(http.StatusOK, gin.H{"activity": logs})
+}
+
+// StartAuditRetention prunes audit rows past the retention window once at
+// boot and then daily. AUDIT_RETENTION_DAYS overrides the 90-day default;
+// 0 disables pruning entirely.
+func StartAuditRetention(ctx context.Context, db *database.DB) {
+	days := 90
+	if raw := strings.TrimSpace(os.Getenv("AUDIT_RETENTION_DAYS")); raw != "" {
+		if parsed, err := strconv.Atoi(raw); err == nil {
+			days = parsed
+		}
+	}
+	// Backfill enrichment for rows written before the classifier existed,
+	// batched so a large audit table doesn't hold a giant transaction.
+	go backfillAuditMetadata(db)
+
+	if days <= 0 {
+		return
+	}
+
+	prune := func() {
+		res, err := db.Exec(`DELETE FROM audit_logs WHERE created_at < NOW() - ($1::int * INTERVAL '1 day')`, days)
+		if err != nil {
+			log.Printf("audit retention prune failed: %v", err)
+			return
+		}
+		if n, _ := res.RowsAffected(); n > 0 {
+			log.Printf("audit retention: pruned %d rows older than %d days", n, days)
+		}
+	}
+	prune()
+
+	go func() {
+		ticker := time.NewTicker(24 * time.Hour)
+		defer ticker.Stop()
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-ticker.C:
+				prune()
+			}
+		}
+	}()
+}
+
+// backfillAuditMetadata classifies rows written before severity/category/label
+// existed so filters and the feed see uniform metadata.
+func backfillAuditMetadata(db *database.DB) {
+	cursor := uuid.Nil.String()
+	for {
+		rows, err := db.Query(
+			`SELECT id::text, resource, action FROM audit_logs
+			 WHERE label = '' AND id > $1::uuid ORDER BY id LIMIT 500`, cursor)
+		if err != nil {
+			log.Printf("audit backfill scan failed: %v", err)
+			return
+		}
+		type row struct{ id, resource, action string }
+		var batch []row
+		for rows.Next() {
+			var r row
+			if rows.Scan(&r.id, &r.resource, &r.action) == nil {
+				batch = append(batch, r)
+			}
+		}
+		rows.Close()
+		if len(batch) == 0 {
+			return
+		}
+		for _, r := range batch {
+			cursor = r.id
+			sev, cat, label := classifyAuditEvent(r.resource, r.action)
+			if _, err := db.Exec(
+				`UPDATE audit_logs SET severity = $1, category = $2, label = $3 WHERE id = $4::uuid`,
+				sev, cat, label, r.id,
+			); err != nil {
+				log.Printf("audit backfill update failed: %v", err)
+			}
+		}
+	}
+}

app/backend/internal/api/activity_test.go

@@ -0,0 +1,32 @@
+package api
+
+import "testing"
+
+func TestClassifyAuditEvent(t *testing.T) {
+	cases := []struct {
+		resource, action          string
+		wantSev, wantCat, wantLab string
+	}{
+		{"service", "service.create", "success", "service", "Service created"},
+		{"service", "service.delete", "warning", "service", "Service deleted"},
+		{"deployment", "deploy", "success", "deployment", "Deployment deployed"},
+		{"project", "project.create", "success", "project", "Project created"},
+		{"user_invite", "user_invite.create", "success", "system", "User invite created"},
+		{"user_token", "user_token.revoke", "warning", "security", "User token revoked"},
+		{"service", "deploy.fail", "error", "service", "Service fail"},
+		{"user", "impersonate", "warning", "user", "User impersonated"},
+		{"webhook", "update", "info", "webhook", "Webhook updated"},
+	}
+	for _, tc := range cases {
+		sev, cat, lab := classifyAuditEvent(tc.resource, tc.action)
+		if sev != tc.wantSev {
+			t.Errorf("%s/%s: severity = %q, want %q", tc.resource, tc.action, sev, tc.wantSev)
+		}
+		if cat != tc.wantCat {
+			t.Errorf("%s/%s: category = %q, want %q", tc.resource, tc.action, cat, tc.wantCat)
+		}
+		if lab != tc.wantLab {
+			t.Errorf("%s/%s: label = %q, want %q", tc.resource, tc.action, lab, tc.wantLab)
+		}
+	}
+}

app/backend/internal/api/audit.go

@@ -23,9 +23,67 @@ type AuditLog struct {
 	Details    string    `json:"details" db:"details"`
 	IPAddress  string    `json:"ip_address" db:"ip_address"`
 	UserAgent  string    `json:"user_agent" db:"user_agent"`
+	Severity   string    `json:"severity" db:"severity"`
+	Category   string    `json:"category" db:"category"`
+	Label      string    `json:"label" db:"label"`
 	CreatedAt  time.Time `json:"created_at" db:"created_at"`
 }
 
+// auditVerbs maps action verbs to past-tense words for feed labels.
+var auditVerbs = map[string]string{
+	"create": "created", "delete": "deleted", "update": "updated",
+	"deploy": "deployed", "clone": "cloned", "move": "moved",
+	"backup": "backed up", "restore": "restored", "revoke": "revoked",
+	"impersonate": "impersonated", "provision": "provisioned",
+	"accept": "accepted", "login": "logged in", "scale": "scaled",
+	"sleep": "put to sleep", "wake": "woke", "approve": "approved",
+	"set_admin": "admin flag changed", "provisioned": "provisioned",
+}
+
+// classifyAuditEvent derives severity/category/label for the activity feed.
+// Actions may already carry the resource prefix ("service.clone") — it is
+// stripped before matching.
+func classifyAuditEvent(resource, action string) (severity, category, label string) {
+	verb := action
+	if idx := strings.LastIndex(verb, "."); idx >= 0 {
+		verb = verb[idx+1:]
+	}
+
+	category = resource
+	switch resource {
+	case "user_invite", "invite", "github_app", "banner", "settings":
+		category = "system"
+	case "user_token", "agent_token", "registry_credential":
+		category = "security"
+	}
+
+	severity = "info"
+	switch {
+	case strings.Contains(verb, "fail"), strings.Contains(verb, "error"), strings.Contains(verb, "denied"):
+		severity = "error"
+	case strings.Contains(verb, "delete"), strings.Contains(verb, "revoke"),
+		strings.Contains(verb, "remove"), strings.Contains(verb, "disable"),
+		strings.Contains(verb, "impersonate"):
+		severity = "warning"
+	case strings.Contains(verb, "create"), strings.Contains(verb, "success"),
+		strings.Contains(verb, "complete"), strings.Contains(verb, "accept"),
+		strings.Contains(verb, "provision"), strings.Contains(verb, "clone"),
+		strings.Contains(verb, "deploy"), strings.Contains(verb, "approve"):
+		severity = "success"
+	}
+
+	past := verb
+	if v, ok := auditVerbs[verb]; ok {
+		past = v
+	}
+	resName := strings.ReplaceAll(resource, "_", " ")
+	if resName != "" {
+		resName = strings.ToUpper(resName[:1]) + resName[1:]
+	}
+	label = resName + " " + past
+	return severity, category, label
+}
+
 type AuditLogDetail struct {
 	OldValue  interface{} `json:"old_value,omitempty"`
 	NewValue  interface{} `json:"new_value,omitempty"`
@@ -42,12 +100,13 @@ func LogAudit(userID, resource, resourceID, action string, details map[string]in
 	detailsJSON, _ := json.Marshal(details)
 	resourceUUID := parseUUIDOrNil(resourceID)
 	userUUID := parseUUIDOrNil(userID)
+	severity, category, label := classifyAuditEvent(resource, action)
 
 	auditID := uuid.New().String()
 	_, err := db.Exec(
-		`INSERT INTO audit_logs (id, user_id, resource, resource_id, action, details, created_at)
-		 VALUES ($1, $2, $3, $4, $5, $6, $7)`,
-		auditID, userUUID, resource, resourceUUID, action, string(detailsJSON), time.Now().UTC(),
+		`INSERT INTO audit_logs (id, user_id, resource, resource_id, action, details, severity, category, label, created_at)
+		 VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)`,
+		auditID, userUUID, resource, resourceUUID, action, string(detailsJSON), severity, category, label, time.Now().UTC(),
 	)
 
 	if err != nil {
@@ -59,6 +118,9 @@ func LogAudit(userID, resource, resourceID, action string, details map[string]in
 func LogAuditWithRequest(c *gin.Context, resource, resourceID, action string, details map[string]interface{}) {
 	userID, _ := c.Get("user_id")
 
+	if details == nil {
+		details = map[string]interface{}{}
+	}
 	details["ip_address"] = c.ClientIP()
 	details["user_agent"] = c.GetHeader("User-Agent")
 
@@ -71,12 +133,13 @@ func LogAuditWithRequest(c *gin.Context, resource, resourceID, action string, de
 	}
 	userUUID := parseUUIDOrNil(userIDStr)
 	resourceUUID := parseUUIDOrNil(resourceID)
+	severity, category, label := classifyAuditEvent(resource, action)
 
 	auditID := uuid.New().String()
 	_, err := db.Exec(
-		`INSERT INTO audit_logs (id, user_id, resource, resource_id, action, details, ip_address, user_agent, created_at)
-		 VALUES ($1, $2, $3, $4, $5, $6::jsonb, $7, $8, $9)`,
-		auditID, userUUID, resource, resourceUUID, action, string(detailsJSON), c.ClientIP(), c.GetHeader("User-Agent"), time.Now().UTC(),
+		`INSERT INTO audit_logs (id, user_id, resource, resource_id, action, details, ip_address, user_agent, severity, category, label, created_at)
+		 VALUES ($1, $2, $3, $4, $5, $6::jsonb, $7, $8, $9, $10, $11, $12)`,
+		auditID, userUUID, resource, resourceUUID, action, string(detailsJSON), c.ClientIP(), c.GetHeader("User-Agent"), severity, category, label, time.Now().UTC(),
 	)
 
 	if err != nil {
@@ -155,6 +218,9 @@ func handleGetAuditLogs(c *gin.Context) {
 		COALESCE(a.details::text, '{}'),
 		COALESCE(a.ip_address::text, ''),
 		COALESCE(a.user_agent, ''),
+		COALESCE(a.severity, 'info'),
+		COALESCE(a.category, ''),
+		COALESCE(a.label, ''),
 		a.created_at
 		FROM audit_logs a
 		LEFT JOIN users u ON u.id = a.user_id
@@ -173,7 +239,7 @@ func handleGetAuditLogs(c *gin.Context) {
 	var logs []AuditLog
 	for rows.Next() {
 		var log AuditLog
-		err := rows.Scan(&log.ID, &log.UserID, &log.UserEmail, &log.Resource, &log.ResourceID, &log.Action, &log.Details, &log.IPAddress, &log.UserAgent, &log.CreatedAt)
+		err := rows.Scan(&log.ID, &log.UserID, &log.UserEmail, &log.Resource, &log.ResourceID, &log.Action, &log.Details, &log.IPAddress, &log.UserAgent, &log.Severity, &log.Category, &log.Label, &log.CreatedAt)
 		if err != nil {
 			continue
 		}

app/backend/internal/api/projects.go

@@ -153,6 +153,7 @@ func handleCreateProject(c *gin.Context) {
 		return
 	}
 
+	LogAuditWithRequest(c, "project", projectRow.ID.String(), "project.create", map[string]interface{}{"name": req.Name})
 	c.JSON(http.StatusCreated, mapSQLCProject(projectRow))
 }
 
@@ -340,6 +341,7 @@ func handleDeleteProject(c *gin.Context) {
 		return
 	}
 
+	LogAuditWithRequest(c, "project", projectID.String(), "project.delete", nil)
 	c.JSON(http.StatusOK, gin.H{"message": "Project deleted successfully"})
 }
 

app/backend/internal/api/routes.go

@@ -106,6 +106,9 @@ func SetupRoutes(router *gin.Engine, db *database.DB, redis *database.Redis, cfg
 	// Sleep sweeper — scales idle services to zero and prunes wake containers.
 	StartSleepSweeper(context.Background(), db, dockerClient, deploymentEngine, cfg.Port)
 
+	// Audit retention — prunes rows past AUDIT_RETENTION_DAYS (default 90).
+	StartAuditRetention(context.Background(), db)
+
 	// Initialize database handler
 	databaseHandler := NewDatabaseHandler(db.DB, dockerClient)
 
@@ -345,6 +348,8 @@ func SetupRoutes(router *gin.Engine, db *database.DB, redis *database.Redis, cfg
 
 			// Cross-cutting ops view — active/queued/failed work
 			authed.GET("/operations", handleGetOperations)
+			authed.GET("/activity", handleGetActivity)
+			authed.GET("/projects/:id/activity", handleGetProjectActivity)
 
 			// Instance announcements shown to all signed-in users
 			authed.GET("/banners/active", handleListActiveBanners)

app/backend/internal/cli/commands/activity.go

@@ -0,0 +1,67 @@
+package commands
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/spf13/cobra"
+)
+
+var (
+	activitySeverity string
+	activityCategory string
+	activityResource string
+	activityProject  string
+	activityLimit    int
+)
+
+// ActivityCmd shows the enriched activity feed (audit events with
+// severity/category/label).
+var ActivityCmd = &cobra.Command{
+	Use:   "activity",
+	Short: "Activity feed — enriched audit events",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		c, err := client()
+		if err != nil {
+			return err
+		}
+		params := []string{fmt.Sprintf("limit=%d", activityLimit)}
+		if activitySeverity != "" {
+			params = append(params, "severity="+activitySeverity)
+		}
+		if activityCategory != "" {
+			params = append(params, "category="+activityCategory)
+		}
+		if activityResource != "" {
+			params = append(params, "resource="+activityResource)
+		}
+		if activityProject != "" {
+			params = append(params, "project_id="+activityProject)
+		}
+		data, err := c.Do("GET", "/activity?"+strings.Join(params, "&"), nil)
+		if err != nil {
+			return err
+		}
+		items, err := unwrapList(data, "activity")
+		if err != nil {
+			return err
+		}
+		rows := make([][]string, 0, len(items))
+		for _, e := range items {
+			rows = append(rows, []string{
+				str(e, "severity"), str(e, "category"), str(e, "label"),
+				str(e, "user_email"), relTime(e, "created_at"),
+			})
+		}
+		printRows(data, []string{"SEVERITY", "CATEGORY", "EVENT", "ACTOR", "WHEN"}, rows)
+		return nil
+	},
+}
+
+func init() {
+	ActivityCmd.Flags().StringVar(&activitySeverity, "severity", "", "filter: info|success|warning|error")
+	ActivityCmd.Flags().StringVar(&activityCategory, "category", "", "filter by category")
+	ActivityCmd.Flags().StringVar(&activityResource, "resource", "", "filter by resource type")
+	ActivityCmd.Flags().StringVar(&activityProject, "project", "", "filter by project id")
+	ActivityCmd.Flags().IntVar(&activityLimit, "limit", 50, "max events")
+}

app/backend/internal/cli/root.go

@@ -89,6 +89,7 @@ func init() {
 	rootCmd.AddCommand(commands.NotificationsCmd)
 	rootCmd.AddCommand(commands.WebhooksCmd)
 	rootCmd.AddCommand(commands.OperationsCmd)
+	rootCmd.AddCommand(commands.ActivityCmd)
 	rootCmd.AddCommand(commands.BannersCmd)
 	rootCmd.AddCommand(commands.InvitesCmd)
 	rootCmd.AddCommand(commands.UpCmd)

app/backend/internal/mcpserver/server.go

@@ -165,6 +165,8 @@ func init() {
 	register(spec{"containr_github_app_status", "Show GitHub App provisioning status (admin).", "GET", "/admin/git/github-app", nil, nil, false})
 	register(spec{"containr_github_app_manifest", "Build a GitHub App manifest for self-provisioning (admin). Args: base_url (required, https public URL), name (optional), organization (optional).", "POST", "/admin/git/github-app/manifest", nil, []string{"base_url", "name", "organization"}, false})
 	register(spec{"containr_github_app_convert", "Exchange the GitHub manifest callback code for app credentials (admin). Args: code.", "POST", "/admin/git/github-app/convert", nil, []string{"code"}, false})
+	register(spec{"containr_activity_list", "Activity feed — enriched audit events (severity/category/label). Args: severity, category, resource, project_id, since, page, limit.", "GET", "/activity", nil, []string{"severity", "category", "resource", "project_id", "since", "page", "limit"}, false})
+	register(spec{"containr_project_activity", "Per-project activity timeline. Args: id (project id), page, limit.", "GET", "/projects/{id}/activity", []string{"id"}, []string{"page", "limit"}, false})
 
 	// Nodes / agent tokens (admin)
 	register(spec{"containr_nodes_list", "List node agents (admin)", "GET", "/agents", nil, nil, false})